primates locomotion hannah manuelito
DESCRIPTION
Introduction Primates can be classified on behavioral grounds into four major types: vertical clinging and leaping, quadrupedalism, brachiation, and bipedalism. The differences between the four major categories lie principally in the degree to which the forelimbs and hind limbs are used to climb, swing, jump, and run.TRANSCRIPT
Primates & LocomotionHannah Manuelito
Introduction
Primates can be classified on behavioral grounds into four major types: vertical clinging and leaping, quadrupedalism, brachiation, and bipedalism.
The differences between the four major categories lie principally in the degree to which the forelimbs and hind limbs are used to climb, swing, jump, and run.
Quadrupedalism(walking on all fours)
Physical Traits
Narrow thorax
Restricted shoulder joint
Forelimbs and hind limbs of similar lengths
Tail reduced
Species that are Quadrapeds
Gorillas
Brachiation(swinging and branch running)
Physical TraitsBroad thoraxForelimbs longer
than hind limbsReduced or absent
pollexMobile shoulder jointShort lumber jointMobile hip joint
Species that Brachiates
Mueller Gibbon
Clinging and Leaping
Physical Traits of Clingers
Hindlimbs longer than forelimbs.
Long, prehensile digits.
Long lumbar region or vertebral column
Species of clingers/leapers
Silky Sifaka
Bipedalism(walking on two feet)
Although there are several bipedal primates in the fossil records, humans are the only living bipedal primates.
Species that are bipeds